chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
@@ -0,0 +1,101 @@
+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+using System;
+using System.IO;
+using System.Linq;
+using NUnit.Framework;
+using QuantConnect.Util;
+
+namespace QuantConnect.Tests.Compression
+{
+    [TestFixture]
+    public class ZipStreamWriterTests
+    {
+        #pragma warning disable CA2000
+        [Test]
+        public void Create()
+        {
+            var fileName = Guid.NewGuid().ToString();
+            var file = new ZipStreamWriter(fileName, "pepe");
+            file.WriteLine("grillo");
+            file.WriteLine("the");
+            file.WriteLine("best");
+            file.DisposeSafely();
+
+            var lines = QuantConnect.Compression.ReadLines(fileName).ToList();
+
+            Assert.AreEqual(3, lines.Count);
+            Assert.AreEqual("grillo", lines[0]);
+            Assert.AreEqual("the", lines[1]);
+            Assert.AreEqual("best", lines[2]);
+            File.Delete(fileName);
+        }
+
+        [Test]
+        public void Update()
+        {
+            var fileName = Guid.NewGuid().ToString();
+            var file = new ZipStreamWriter(fileName, "pepe");
+            file.WriteLine("grillo");
+            file.DisposeSafely();
+
+            var fileBis = new ZipStreamWriter(fileName, "pepe");
+            fileBis.WriteLine("the");
+            fileBis.WriteLine("best");
+            fileBis.DisposeSafely();
+
+            var lines = QuantConnect.Compression.ReadLines(fileName).ToList();
+
+            Assert.AreEqual(3, lines.Count);
+            Assert.AreEqual("grillo", lines[0]);
+            Assert.AreEqual("the", lines[1]);
+            Assert.AreEqual("best", lines[2]);
+            File.Delete(fileName);
+        }
+
+        [Test]
+        public void MultipleEntries()
+        {
+            var fileName = Guid.NewGuid().ToString();
+            var file = new ZipStreamWriter(fileName, "pepe");
+            file.WriteLine("grillo");
+            file.DisposeSafely();
+
+            var fileBis = new ZipStreamWriter(fileName, "pepeBis");
+            fileBis.WriteLine("the");
+            fileBis.WriteLine("best");
+            fileBis.DisposeSafely();
+
+            var lines = QuantConnect.Compression.Unzip(fileName).ToList();
+
+            Assert.AreEqual(2, lines.Count);
+
+            Assert.AreEqual("pepe", lines[0].Key);
+            Assert.AreEqual("pepeBis", lines[1].Key);
+
+            var entry1 = lines[0].Value.ToList();
+            Assert.AreEqual(1, entry1.Count);
+            Assert.AreEqual("grillo", entry1[0]);
+
+            var entry2 = lines[1].Value.ToList();
+            Assert.AreEqual(2, entry2.Count);
+            Assert.AreEqual("the", entry2[0]);
+            Assert.AreEqual("best", entry2[1]);
+
+            File.Delete(fileName);
+        }
+    }
+}